Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

ATMEGA325P Scheda tecnica(PDF) 94 Page - ATMEL Corporation

Il numero della parte ATMEGA325P
Spiegazioni elettronici  8-bit Microcontroller with 32K Bytes In-System Programmable Flash
Download  336 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA325P Scheda tecnica(HTML) 94 Page - ATMEL Corporation

Back Button ATMEGA325P_06 Datasheet HTML 90Page - ATMEL Corporation ATMEGA325P_06 Datasheet HTML 91Page - ATMEL Corporation ATMEGA325P_06 Datasheet HTML 92Page - ATMEL Corporation ATMEGA325P_06 Datasheet HTML 93Page - ATMEL Corporation ATMEGA325P_06 Datasheet HTML 94Page - ATMEL Corporation ATMEGA325P_06 Datasheet HTML 95Page - ATMEL Corporation ATMEGA325P_06 Datasheet HTML 96Page - ATMEL Corporation ATMEGA325P_06 Datasheet HTML 97Page - ATMEL Corporation ATMEGA325P_06 Datasheet HTML 98Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 94 / 336 page
background image
94
8023A–AVR–12/06
ATmega325P/3250P
13.5.1
Force Output Compare
In non-PWM waveform generation modes, the match output of the comparator can be forced by
writing a one to the Force Output Compare (FOC0A) bit. Forcing compare match will not set the
OCF0A Flag or reload/clear the timer, but the OC0A pin will be updated as if a real compare
match had occurred (the COM0A1:0 bits settings define whether the OC0A pin is set, cleared or
toggled).
13.5.2
Compare Match Blocking by TCNT0 Write
All CPU write operations to the TCNT0 Register will block any compare match that occur in the
next timer clock cycle, even when the timer is stopped. This feature allows OCR0A to be initial-
ized to the same value as TCNT0 without triggering an interrupt when the Timer/Counter clock is
enabled.
13.5.3
Using the Output Compare Unit
Since writing TCNT0 in any mode of operation will block all compare matches for one timer clock
cycle, there are risks involved when changing TCNT0 when using the Output Compare unit,
independently of whether the Timer/Counter is running or not. If the value written to TCNT0
equals the OCR0A value, the compare match will be missed, resulting in incorrect waveform
generation. Similarly, do not write the TCNT0 value equal to BOTTOM when the counter is
counting down.
The setup of the OC0A should be performed before setting the Data Direction Register for the
port pin to output. The easiest way of setting the OC0A value is to use the Force Output Com-
pare (FOC0A) strobe bits in Normal mode. The OC0A Register keeps its value even when
changing between Waveform Generation modes.
Be aware that the COM0A1:0 bits are not double buffered together with the compare value.
Changing the COM0A1:0 bits will take effect immediately.
13.6
Compare Match Output Unit
The Compare Output mode (COM0A1:0) bits have two functions. The Waveform Generator
uses the COM0A1:0 bits for defining the Output Compare (OC0A) state at the next compare
match. Also, the COM0A1:0 bits control the OC0A pin output source. Figure 13-4 shows a sim-
plified schematic of the logic affected by the COM0A1:0 bit setting. The I/O Registers, I/O bits,
and I/O pins in the figure are shown in bold. Only the parts of the general I/O port control regis-
ters (DDR and PORT) that are affected by the COM0A1:0 bits are shown. When referring to the
OC0A state, the reference is for the internal OC0A Register, not the OC0A pin. If a System
Reset occur, the OC0A Register is reset to “0”.


Codice articolo simile - ATMEGA325P_06

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
ATMEL Corporation
ATMEGA325P ATMEL-ATMEGA325P_07 Datasheet
449Kb / 24P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA325P ATMEL-ATMEGA325P_08 Datasheet
332Kb / 22P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA325P ATMEL-ATMEGA325P_09 Datasheet
503Kb / 25P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
More results

Descrizione simile - ATMEGA325P_06

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
ATMEL Corporation
ATMEGA325P ATMEL-ATMEGA325P_08 Datasheet
332Kb / 22P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA329P ATMEL-ATMEGA329P_08 Datasheet
471Kb / 25P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA324PA ATMEL-ATMEGA324PA Datasheet
546Kb / 24P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA32A ATMEL-ATMEGA32A Datasheet
427Kb / 18P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA325P ATMEL-ATMEGA325P Datasheet
346Kb / 25P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA32 ATMEL-ATMEGA32_08 Datasheet
5Mb / 346P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA329P ATMEL-ATMEGA329P_1 Datasheet
5Mb / 385P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA32A ATMEL-ATMEGA32A_09 Datasheet
518Kb / 18P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA328P ATMEL-ATMEGA328P_09 Datasheet
5Mb / 345P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
ATMEGA32A ATMEL-ATMEGA32A_1 Datasheet
6Mb / 352P
   8-bit Microcontroller with 32K Bytes In-System Programmable Flash
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com